package com.zrzhen.springbootdemo.controller;

import com.zrzhen.springbootdemo.common.http.Ipphttp;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import java.net.InetAddress;

@RestController
public class IndexContrller {

    @Resource(name = "asyncHttp")
    private Ipphttp ipphttp;

    @GetMapping("/s")
    public String s(HttpServletRequest request) {
        String d = request.getQueryString();

        String ip = getIpAddr(request);
        System.out.println(ip);
        String respstr = ipphttp.get("http://www.baidu.com/s?"+d, null, null);
        return respstr;
    }

    /**
     * @Description: 获取客户端IP地址
     */
    private String getIpAddr(HttpServletRequest request) {
        String ip = request.getHeader("x-forwarded-for");
        if(ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("Proxy-Client-IP");
        }
        if(ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("WL-Proxy-Client-IP");
        }
        if(ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getRemoteAddr();
            if(ip.equals("127.0.0.1")){
                //根据网卡取本机配置的IP
                InetAddress inet=null;
                try {
                    inet = InetAddress.getLocalHost();
                } catch (Exception e) {
                    e.printStackTrace();
                }
                ip= inet.getHostAddress();
            }
        }
        // 多个代理的情况，第一个IP为客户端真实IP,多个IP按照','分割
        if(ip != null && ip.length() > 15){
            if(ip.indexOf(",")>0){
                ip = ip.substring(0,ip.indexOf(","));
            }
        }
        return ip;
    }
}
